Shrub up to 2 meter tall growing robust along tidal swamps in sheltered mangrove areas, landward margins and back waters; Aerial roots-stilt roots; Leaves-simple, opposite, lanceolate, narrowed at base, serrate margins armed with spines; spines longer in flowering season; petiole short, 5 to 6 mm in length, slightly winged with two sharp spurs at the base; color dark green when fresh, yellowish-brown on drying